Method of mounting sheets upon pasteboard or the like



July 21,1925.

- W. M. CARTER METHOD OF MOUNTING SHEETS UPON PASTEBOARD OR THE LIKE Fired. Dec. 10, 192.3 3 Sheets-Sheet 1 Snvemfoz gg lll. Gal.)-

July 21, 1925.

W. M. CARTER METHOD OF MOUNTING SHEETS UPON PASTEBOARD OR THE LIKE Filed Dec. 10, 1923 3 Sheet s Sh eet 2 July 21, 1925.

Filed Dec. 10, 1923 5 Sheets-$heet 5 Patented July 21, 1925.

wILLIs Mason CARTER, or HOBOKEN, new JERSEY, assrenoa TO THE GOMIEANY, a conror a'rron or new YORK.

ENT OFFICE.

W.- F. POWERS METHOD OF MOUNTING SHEETS UPON PAS'IEBOABD OR; THE LIKE.

Applicatioii filed. December 10, 1923. Serial No. 679,563.

To all whom it may concern:

Be it known that I, WILLIS M. CARTEB,

a citizen of the United States, and a resident of l'loboken, county of Hudson, State 55 of New Jersey, have invented an Improvement in Methods of Mounting Sheets Upon Pasteboard or the like, of which the follow ing is a specification.

This invention relates to method of mounting paper upon pasteboard orthe like.

The invention herein is particularly use ful in cases where it is desired to secure an exact registry of the paper and board upon which it is to be mounted, as for in- W stance, in the case of out out pasteboard displays in which the outline of the pasteboard may simulate the outline of a figure and the paper to be mounted upon it is correspondingly colored.

A further object out the invention is to provide a method which is substantially continuous as the result of which paper is acp tlirately mounted upon pasteboard or the lie.

This invention aims further to provide a method for mounting paper on pasteboard or the like, the method being adaptable to the handling of sheets of board of varying size and thickness, to which the paste or other adhesive is applied in a uniform manner in order to secure adhesion of the paper throughout the entiresurface of the board without the presence of lumps 0r bubbles and in which the paper may be mounted upon both sides ofthe board simultaneously. lln inventions such as herein disclosed it will be understood that colored paper or the like is mounted on one side of the board to be displayed and that on the back thereof descriptive matter is mounted or frequently a sheet of blank aper is mounted in order to prevent-buckling or warping of the board.

Other objects and advantages of this invention will be apparent from the following description taken in conjunction with the accompanying drawings, in which:

Figure 1 is a more or less diagrammatic illustration of the machine of the present invention the same being a side view thereof with certain out the parts broken away.

Figure 2 is a detailed view of the mechanism bywhich the movement of the board is arrested in order to position it.

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Figure 3 is a detailed view of a portion of the arresting mechanism, and

Flgures 4, 5 and 6 are views of the carrier mechanism employed with the machine.

Considering first the method of mounting paper or the like upon pasteboard or the like .it is highly desirable and in fact essential that the aste or other adhesive employed be evenly distributed on the board and such paste should be free tromlumps or bubbles and the board should be aligned with respect to the paper to be mounted thereon, during the method, and further, the movement of the board should be timed with respect to the movement of the paper.

therein are broken and the paste is forced into the fibres of the board. During the above operation the board has been forcibly fed through the machine and at this point saidboard is carried forward from the paste spreading means to what may be termed a board handling means the interval therebetween being sutl icient to allow the adhesive to obtain the proper degree of stickiness which is necessary before paper is applied to the board. During this interval the board is automatically positioned or aligned with respect to the paper to be mounted thereon and the next step in'this method is the application of the paper to the board and to the end that the paper ma be accurately mounted upon the board, preferably synchronize the movement of the-board with respect to the paper, the latter being applied to both sides of the board.

From the above it can be seen that this invention comprises essentially, a continuous process in which paste is applied to a board, saidpaste being evenly spread on the board and forced into the fibres of the board, the board then aligned with the paper and finally the paper is applied to the board.

With particular reference now fix) the means for carrying out the above process, I

referrin to Figure 1, the pasteboard is illustrate at 1, 1t being fed in the direction of the arrow and into the machine in sheets at the point 2 where it is engaged by feed rolls 3 which are resiliently held in contact by means of a spring 4, or the like, 'so as to provide a yielding engagement with the board but such engagement being only of such strength-as to exert sufficient pressure on the board to drive the same forwardly. It is to be understood that the lower roll 3 and all other driven parts of the machine are operated from a suitable source of power attached to the shaft 5, motion of which is communicated to the other parts of the machine through the shaft 6 and suitable gearing, the details of which it is unnecessary to describe as they are of conventional form and easily available to those skilled in the art. The board after passing through the feed rolls 3 is fed to the paste rolls 77 which are supplied with paste from the wells 8-8. The paste rolls 77 are likewise held in yielding engagement with the board through the medium of the spring 9. The board is then fed to the wiping rolls 1010 which are resiliently mounted by springs 11 where the paste or other adhesive applied to the surface of the board is evenly spread there over and any lumps or bubbles therein are broken up by said rolls. The rolls 10 further, force the adhesive into the fibre of the board as will be obvious. Positioned in ad vance of the paste applying roll 7 is a board supporting roll 8 and on the opposite side of the paste applying roller 7 are cooperating board supporting rolls 9 which support and guide the board delivered from the paste applying board 7. Positioned in advance of the spreading rolls 10 and substantially adjacent the lower supporting roll 9 is a board supporting roll 10 which receives the board from the supporting rolls 9 and assists in guiding the same between the rolls 10. Upon leaving the rolls 10 the board passes between guiding and supporting rollers 11.

The board is then carried forward over a, carrier which comprises a series of rolls 12, which rolls are shown in detail in Figures 4:, 5 and 6 and consists of a plurality of disks 13, having teeth 14: on their periphery.

mounted side by side upon transverse shafts 15. The rolls 12 are adapted to drive the board forward through the machine, while at the same time producing no disturbance of the paste upon its surface. As clearly shown in Figure 4 the rolls 12 are set at an angle to the transverse line of the machine, and are driven by means of a chain 16, cooperating with sprockets 17 or in any other suitable manner. The sprockets 17 are countersunk in the rolls 12 the chain 16, in operation, being below the plane of the teeth 14: or in other words below the; periphery of the rolls 12, in order that the chain and sprockets may not interfere with the sheets in their passage over the rolls 12. Positioned adjacent one end of the rolls 12 is a guide 18 which extends throughout the length of the carrier portion of the machine, and is arranged parallel to the longitudinal axis of the machine. It will be obvious that the rolls 12, making an acute angle with the guide 18, carry the board over to contact with the guide 18 and maintain it in contact therewith throughout its travel, this resulting in the proper positioning of the board laterally with respect to the remaining elements of the machine to be presently described. This carrier is of such length and is driven at a speed sufficient to permit the adhesive on the board to become sticky to the correct degree for theapplication of the paper, during the interval between the spreading of the paste and its application to the paper and it will be obvious that the number of rolls may be varied or the speed may be diminished or increased at will in order to meet various conditions.

The board having been positioned laterally by means of the guide 18, it is desirable to synchronize its movement with the movement of the paper to be applied thereto. Referring now to Figure 2 it will be seen that mounted upon the shaft 19 is a cam 20. which is driven by the shaft 6 which, by reason of being geared to shaft 5 by means of the gears 21 and 22, bears a fixed relation of movement to the driv of the mounting rolls 23 and 24, which rolls are the means by which the paper is applied to the board, as will be hereinafter described. Mounted upon the frame 25 of the machine is a guide 26 within which a plunger 27 is movable, the plunger being driven by cam 20 through the cam roller 28. Pivotally mounted upon the frame 25, which frame 25 constitutes a base, as for instance at 29, is a swinging frame 30, carrying a bracket 31 within which an adjustable shaft 32, having an enlarged end 33 which for convenience in determining the adjustment may be graduated as shown to cooperate with the pointer 34 and a. locking nut 35. By means of the mechanism just described the shaft 32 may be adjusted vertically in any position de sired and may be locked 'in position by means of the locking nut 35. The plunger 27 cooperates with the enlarged end 33 to raise and lower the swinging frame 30 in response to the curvature of the cam 20. Carried at the outer end of the frame 30 are the feed rolls 36 which are mounted upon the shaft 37 and which are preferably in the form of relatively thin disks which are adapted to engage the edges only of the board, for an obvious reason. These rolls are fixedly secured within the frame 30 and are movable therewith and cooperate with feed rolls 38 which latter are driven by suitable gearing indicated diagrammatically at 39 and 40, from the shaft 19. It is obvious that the relative positions of the to force the swinging frame 30 upwardly against the tension of spring43 whereby any desired thickness of board between the rolls may be accommodated between the rolls 36- and 38. As before mentioned the frame 30 is swung upwardly in response to the cam but the weight of the swinging frame and the "tension of the spring 43 I are ordinarily sufficient to return theplunger 27 and to hold it in contact with the tllt cam 20 but if desired additional meanssuch as the spring 44 may be providedj 'To indicate the initial adjustment of.

mounted shaft 45 is an arm 46' (see Figure 3) carrying in its outer end pin 47 upon which a pivoted finger 48 is'mounted. The finger 48 is normally held in position by means of a yielding action such as the spring 49, and as will be seen, may be raised and lowered out of the path of the board'by the rotation of the shaft 45.

Fixed on the shaft 45 and mounted oppositely to the arm 46 is an arm 50, through an aperture in the end of which the rod 51 passes. Mounted upon the latter is an abutment 52 for the spring 53, which bears upon the under side of arm 50 and tends to force it upwardly against the limiting stop 54. The lower end of arm 51 is secured to a bracket 55 which is attached to the plunger 27 and is movable vertically by means of a slot in the guide 26.

From the above it will be seen that as the plunger 27 rises, thus raising the swinging frame 30 and separating the feed rolls 36 and 38 the finger 48 is forced into its downward position by means of spring 53 which acts against the arm 50. During this time the board is driven forward and is positioned by bringing up against the finger 48. When, however, the plunger falls due to the revolution of cam 20 and the rolls 36 and 38 take hold of and drive the board the finger 48 is raised out of the path of the board by the stop 54 being brought into contact with the upper side of arm ,50, thus rocking the shaft 45 and raising the arm 46. From the above it will be noted that the feeding of the board is resumed and the obstruction of finger 48 is removed from the path of the board in definite timed relation with respect to the rolls 23 and 24, upon which the paper is held and since the board has been positioned laterally due to its. engagement with the guide 18 a perfect registry of the board and the paper will result.

The paper may conveniently be mounted by means of rolls 23 and 24 driven from shaft 5 by the worm gear 56. The upper roll 23 is mounted in a swinging frame 57 which may be, given-an initial adjustment ,to accord with the thickness of the board ably arranged to cast off at or shortly before the paper is brought into contact with the board, the paper being held to the rolls 23 and 24 after the grippers are cast off by means of a suction device 61. The paper may be fed from tables 62 and 63 or in any ing of sheets. 1

It is believed that the operation of this machine will be obvious to anyone skilled in the art and T desire it understood that various changes in the form and proportions of the machine may be made within the scope of the appended claims without dcparting from the spirit of the invention.

A common use of my improvements is in the manufacture ofboard and paper for the purpose of cutting out figures therefrom, in

, other suitable manner adapted for the feedwhich the board gives the necessary body to the figures, and the figures or objects them-" selves are printed on thin paper. The board and paper are usually in the form of rectangular sheets. In this art it is necessary to board and paper follow on between the applying rolls, the paper falls smoothly and accurately to place, and is laid in eX- act registry with the board. It is important to have this registration of paper and board take place at the front edge, and this I believe to, be new in the art. By operating in thisway a more perfect registration is obtained, and there is less likelihood .of any displacement of the paper and board with relation to each other.

. at T claim is:

1. The method of mounting a flexible sheet upon a relatively stiffer board which consists in advancing the board, feeding the sheet toward the path of travel of the board, engaging the forward edge of the board to arrest its movement, retalning the board in a stationary position until the forward edge of the sheet and the forward edge of the board bear a definite relation to each other and thereafter advancing the board to meet the sheet. i

2. The method of mounting a flexible sheet upon a relatively stifier board which includes advancing the board, feeding the sheet toward the path of movement of the board, and momentarily arresting the movement of the board in its passage to the sheet by applying a reactive force to the forward end of the board.

3. lhe method of mounting a sheet upon a relatively stifier board which consists in advancing the board, continuously feeding the sheet toward the path of travel of the board, momentarily arresting the movement of the board by reactive force applied to its forward edge and thereafter advancing the board to meet the sheet.

4. The method of mounting a sheet upon a relatively stiffer board which consists in advancing the board, continuously feeding the sheet toward the path of travel of the board, momentarily arresting the movement of the board by reactive force applied to its forward edge, aligning! the board I LWEZDQZQ from its side during its advance movement and thereafter advancing the board to meet the sheet.

5. Ihe method of mounting a sheet upon a relatively stiffer board which consists in advancing the board, engaging its forward edge to momentarily arrest its movement, continuously feeding a sheet toward the path of movement of the board, releasing the board,- and advancing it to the sheet.

6. The method of mounting a sheet upon a relatively stiffer board which consists in advancing the board, engaging its forward edge to momentarily arrest its movement, continuously feeding a sheet toward the path of movement of the board, releasing the board, and advancing it to the sheet by a force applied to the face of the board.

In testimony whereof, I have signed my name to this specification this 5th day of December 1923.

WILLIS MASON CARTER. 

